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Table 2
SiO line parameters in IRC +10216.
| Transition | ν rest | ν obs |
|
v exp | Notes |
| (MHz) | (MHz) | K km s-1 | km s-1 | ||
|
|
|||||
| SiO | |||||
| v=0 J=2-1 | 86846.971 | 86846.8(2) | 52(2) | 13.9(2) | |
| v=0 J=3-2 | 130268.665 | 130268.5(2) | 106(4) | 13.6(2) | |
| v=0 J=4-3 | 173688.210 | 173687.6(3) | 153(6) | 13.6(3) | |
| v=0 J=5-4 | 217104.889 | 217104.6(2) | 145(7) | 13.1(5) | |
| v=0 J=6-5 | 260517.985 | 260517.8(2) | 161(8) | 13.7(4) | |
| v=0 J=7-6 | 303926.783 | 303926.6(2) | 173(8) | 13.0(4) | |
| v=0 J=8-7 | 347330.565 | 347329.9(7) | 153(10) | 13.0(7) | |
| v=1 J=2-1 | 86243.430 | 86243.1(10) | 0.04(2) | 10.8(10) | $ ! |
| v=1 J=5-4 | 215596.029 | 215596.0(5) | 0.54(5) | 13.4(8) | |
| v=1 J=7-6 | 301814.369 | 301815.9(10) | 0.93(6) | 12.6(8) | |
|
|
|||||
| 29SiO | |||||
| v=0 J=2-1 | 85759.202 | 85759.0(2) | 4.2(2) | 15.3(4) | |
| v=0 J=4-3 | 171512.814 | 171513.0(2) | 11.9(5) | 14.1(3) | |
| v=0 J=5-4 | 214385.778 | 214385.9(3) | 13.2(5) | 13.9(4) | |
| v=0 J=6-5 | 257255.249 | 257255.7(5) | 11.1(5) | 14.0(5) | |
| v=0 J=7-6 | 300120.528 | 300121.7(3) | 16.4(6) | 13.8(4) | |
| v=0 J=8-7 | 342980.917 | 342980.9(5) | 11.2(5) | 13.4(5) | |
|
|
|||||
| 30SiO | |||||
| v=0 J=2-1 | 84746.193 | 84746.0(2) | 2.9(1) | 14.6(3) | |
| v=0 J=4-3 | 169486.930 | 169486.8(2) | 7.3(3) | 14.5(3) | |
| v=0 J=5-4 | 211853.546 | 211853.4(3) | 15.2(6) | 13.5(5) | |
| v=0 J=6-5 | 254216.751 | 254216.7(6) | 9.5(5) | 14.6(6) | |
| v=0 J=7-6 | 296575.863 | 296575.9(4) | 10.4(2) | 14.0(5) | |
| v=0 J=8-7 | 338930.199 | 338930.0(4) | 6.9(1) | 14.0(5) | |
|
|
|||||
| Si18O | |||||
| v=0 J=2-1 | 80704.907 | 80705.6(15) | 0.06(3) | 14.5(20) | ! |
| v=0 J=5-4 | 201751.443 | 201750.8(10) | 0.30(8) | 12.6(15) | ! |
|
|
|||||
| Si17O | |||||
| v=0 J=4-3 | 167171.974 | 167172.1(6) | 0.49(3) | 14.3(6) | |
| v=0 J=5-4 | 208959.990 | 208960.4(8) | 0.30(5) | 14.2(6) | |
| v=0 J=7-6 | 292525.404 | 292526.0(10) | 0.54(3) | 14.1(8) | |
| v=0 J=8-7 | 334301.474 | 334300.7(10) | 0.33(3) | 16.4(20) | |
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